Answer:
2
Step-by-step explanation:
let me know if you need explanation
Slope Intercept form: y=-3/8m+1/4.
Answer: 
Step-by-step explanation:
You know that the triangle ABC and the triangle DEF are similar.
Therefore, if the lenght of AC is 12 centimeters and the lenght of DF is 10 centimeters, then you can find the ratio as following:

Then, the calculte the length of EF, you must multiply the lenght BC of the triangle ABC by the ratio obtained above.
Therefore, the lenght EF is the following:

I think it's 5. 03? I haven't found the median of anything in a while, so it might be a little inaccurate.
Answer:
I don't think there is a way the values can be determined...